CN213236116U

CN213236116U - Multi-coal inflatable sealing type pneumatic quick door closing device

Info

Publication number: CN213236116U
Application number: CN202021377633.1U
Authority: CN
Inventors: 徐军; 焦波; 殷金娥; 钱凯
Original assignee: Jiangsu Intn Machinery Manufacturing Co ltd
Current assignee: Jiangsu Intn Machinery Manufacturing Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-18
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a many coal types aerify canned type pneumatics and close door soon, including valve body and cylinder support, cylinder support's upper end is equipped with the cylinder, and the cylinder body of cylinder passes through screw and cylinder support fixed connection, the valve body is located cylinder support's lower extreme, and the valve body passes through screw and cylinder support fixed connection, the upper end of valve body is equipped with exit, the upper and lower both ends of exit all are equipped with the flange, and exit department is equipped with airtight joint, the inside flashboard that is equipped with of valve body, and the upper end of flashboard is equipped with the spliced pole, the spliced pole passes exit and through the piston rod pin joint of round pin axle with the cylinder, the inside both ends of valve body all are equipped with the U-shaped recess, and are equipped with keypad and sealing rubber strip. Compare with traditional pneumatic valve for the coal pulverizer, the utility model discloses a set up airtight sealing head and blow grey pipe, can blow grey processing to the valve body when flashboard up-and-down motion, have very good sealed effect.

Description

Multi-coal inflatable sealing type pneumatic quick door closing device

Technical Field

The utility model relates to a pneumatic gate technical field specifically is a pneumatic quick door that closes of canned type is aerifyd to many coal types.

Background

The boilers in modern large and medium-sized thermal power plants generally adopt pulverized coal combustion. The coal mill is used for grinding coal blocks into coal powder and is an important auxiliary device of a coal powder boiler. In order to ensure the safe operation of a coal pulverizing system of the coal pulverizer, a gate needs to be arranged on a coal outlet pipeline of the coal pulverizer, and a passage of a coal powder mixture between the coal pulverizer and a boiler is cut off through a valve. The existing pneumatic valve does not have a soot blowing function, so that the problem of influence on the sealing performance of the valve due to residual pulverized coal can be solved, and the abrasion of the valve can be accelerated if a large amount of coal slag is remained in the valve.

Therefore, a pneumatic quick-closing door with a plurality of coal inflatable sealing types is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a canned type pneumatic quick door is closed to aerify to many coal types to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the pneumatic quick-closing door with inflatable sealing for various coal types comprises a valve body and a cylinder bracket, wherein the upper end of the cylinder bracket is provided with a cylinder, the cylinder body of the cylinder is fixedly connected with the cylinder bracket through a screw, the valve body is positioned at the lower end of the cylinder bracket, the valve body is fixedly connected with the cylinder bracket through screws, the upper end of the valve body is provided with an inlet and an outlet, the upper end and the lower end of the inlet and the outlet are both provided with flanges, and the inlet and outlet are provided with air-tight joints, the valve body is internally provided with a flashboard, the upper end of the flashboard is provided with a connecting column, the connecting column passes through the inlet and the outlet and is in pin joint with a piston rod of the cylinder through a pin shaft, two ends inside the valve body are provided with U-shaped grooves, and a key plate and a sealing rubber strip are arranged in the U-shaped groove, the key plate is positioned at the outer side of the sealing rubber strip, a set of fastening adjusting bolts are arranged at two ends of the outer portion of the valve body, and two soot blowing pipes are symmetrically arranged at the lower end of the valve body.

Preferably, the valve body is internally provided with a flashboard groove for fixing the flashboard, and the flashboard is connected with the valve body in a vertical sliding mode through the flashboard groove.

Preferably, the lower side of the cylinder bracket is provided with a dismounting hole.

Preferably, the gate is a knife gate.

Preferably, the valve body is internally provided with a wear-resistant ceramic silicon carbide lining.

Preferably, every group tightly decide adjusting bolt and all be the annular form and arrange on the valve body, and tightly decide adjusting bolt and pass through thread groove and valve body spiro union.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that the valve body with the airtight sealing joint and the ash blowing pipe is arranged, the flashboard can move up and down in the valve body under the driving of the cylinder, the airtight sealing joint is arranged at the inlet and the outlet, and the airtight sealing joint can directly blow out fine powder brought out by the vertical movement of the flashboard from the outlet surface when the flashboard moves up and down by double-sided air inlet, thereby achieving good sealing effect; can clear up the inside buggy of valve body through blowing the ash pipe to ensure that there is not deposition of dust in the valve body, the condition of no deposition appears. Compare with traditional pneumatic valve for the coal pulverizer, the utility model discloses a set up airtight sealing head and blow grey pipe, can blow grey processing to the valve body when flashboard up-and-down motion, have very good sealed effect.

Drawings

Fig. 1 is a side sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is an enlarged schematic view of the structure at a of the present invention.

In the figure: 1. a valve body; 2. a cylinder support; 3. a cylinder; 4. an inlet and an outlet; 5. sealing the joint in an airtight manner; 6. a shutter plate; 7. tightening the adjusting bolt; 8. a soot blowing pipe; 9. and (6) disassembling the hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a multi-coal inflatable sealing type pneumatic quick-closing door, which comprises a valve body 1 and a cylinder support 2, wherein the upper end of the cylinder support 2 is provided with a cylinder 3, the cylinder body of the cylinder 3 is fixedly connected with the cylinder support 2 through a screw, the valve body 1 is positioned at the lower end of the cylinder support 2, the valve body 1 is fixedly connected with the cylinder support 2 through a screw, the upper end of the valve body 1 is provided with an inlet and an outlet 4, the upper and lower ends of the inlet and outlet 4 are respectively provided with a flange, the inlet and outlet 4 is provided with an airtight sealing joint 5, the valve body 1 is internally provided with a flashboard 6, the upper end of the flashboard 6 is provided with a connecting column, the connecting column passes through the inlet and outlet 4 and is in pin joint with a piston rod of the cylinder 3 through a pin shaft, the two ends inside the valve body 1 are respectively provided with a U-, the outside both ends of valve body 1 all are equipped with a set of adjusting bolt 7 that tightly decides, the lower extreme symmetry of valve body 1 is equipped with two soot blowpipes 8, and the valve is opened when flashboard 6 is the up-motion, and the valve is closed when doing the down-motion.

The inside flashboard groove that is used for fixed flashboard 6 that is equipped with of valve body 1, and flashboard 6 passes through flashboard groove and valve body 1 upper and lower sliding connection. The downside of cylinder support 2 is equipped with disassembly hole 9, and disassembly hole 9 just is to the junction of spliced pole and cylinder piston rod, through the disassembly hole, can do benefit to the dismantlement of round pin axle. The gate 6 is a knife gate, and when the gate 6 moves up and down, the knife gate can cut larger pulverized coal particles. The valve body 1 is internally provided with a wear-resistant ceramic silicon carbide lining, so that the valve body is more wear-resistant. Every group tightly decide adjusting bolt 7 and all be the annular form and arrange on valve body 1, and tightly decide adjusting bolt 7 and pass through thread groove and valve body 1 spiro union, the usable elasticity of tightly deciding adjusting bolt 7 compresses tightly the keypad and wear-resisting sealing rubber strip makes it paste tight flashboard face to reach the purpose in effective clearance between adjusting valve body 1 and the flashboard 6.

In order to better understand the utility model by those skilled in the art, the working process of the utility model is briefly described with reference to the attached drawings: by arranging the valve body 1 with the air-tight joint 5 and the soot blowing pipe 8, the gate plate 6 can move up and down in the valve body 1 under the drive of the cylinder 3, the air-tight joint 5 is arranged at the inlet and the outlet 4, the air-tight joint 5 can blow away fine powder brought out by the up-and-down movement of the gate plate 6 by air entering from two sides when the gate plate 6 moves up and down, and a good sealing effect is achieved; can clear up the inside buggy of valve body 1 through blowing ash pipe 8 to ensure that valve body 1 is inside not to have the deposition, the condition of no deposition appears.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pneumatic quick door that closes of canned type is aerifyd to many coal types, includes valve body (1) and cylinder support (2), its characterized in that: the upper end of the cylinder support (2) is provided with a cylinder (3), the cylinder body of the cylinder (3) is fixedly connected with the cylinder support (2) through screws, the valve body (1) is positioned at the lower end of the cylinder support (2), the valve body (1) is fixedly connected with the cylinder support (2) through screws, the upper end of the valve body (1) is provided with an inlet and an outlet (4), the upper end and the lower end of the inlet and the outlet (4) are respectively provided with a flange, an airtight sealing joint (5) is arranged at the inlet and the outlet (4), a flashboard (6) is arranged inside the valve body (1), the upper end of the flashboard (6) is provided with a connecting column, the connecting column penetrates through the inlet and the outlet (4) and is in pin joint with a piston rod of the cylinder (3) through a pin shaft, the two ends inside of the valve body (1) are respectively provided with a U-shaped groove, the outer two ends of the valve body (1) are provided with a set of fastening adjusting bolts (7), and the lower end of the valve body (1) is symmetrically provided with two soot blowing pipes (8).

2. The multi-coal inflatable seal type pneumatic quick-closing door as claimed in claim 1, characterized in that: the valve is characterized in that a flashboard groove for fixing the flashboard (6) is formed in the valve body (1), and the flashboard (6) is connected with the valve body (1) in a sliding mode from top to bottom through the flashboard groove.

3. The multi-coal inflatable seal type pneumatic quick-closing door as claimed in claim 1, characterized in that: and a dismounting hole (9) is formed in the lower side of the cylinder support (2).

4. The multi-coal inflatable seal type pneumatic quick-closing door as claimed in claim 1, characterized in that: the gate plate (6) is a knife-type gate plate.

5. The multi-coal inflatable seal type pneumatic quick-closing door as claimed in claim 1, characterized in that: the valve body (1) is internally provided with a wear-resistant ceramic silicon carbide lining.

6. The multi-coal inflatable seal type pneumatic quick-closing door as claimed in claim 1, characterized in that: and each set of tightening adjusting bolts (7) is annularly arranged on the valve body (1), and the tightening adjusting bolts (7) are in threaded connection with the valve body (1) through thread grooves.